Overflow problem, any engineer out there?

[ScubaSteve]

Originally Posted by Coleus

My original plan was to have the sump under the tank but then, for the easy of cleaning, but then i got to talk into put it in the mechanical room for easy cleaning and noise problem. Your idea maybe not a bad idea, hmm, what is the best way to do flow matching. Time for google :-) Cheers

So the trick to this approach is to let flows be independent of each other. Let the displaytank drain into the small sump at the same rate the return pump is feeding it back into the display. This is easy, it's just like a normal sump set up. The trick is sending water to the remote sump via a pump and letting it flow back naturally (basically another drain system just like of the display. If you can have the remote sump raised above the small sump under the tank and just use another herbie drain at the remote sump, you're golden. Think of the little sump under the display as a common sump for two displays. That's basically what you'd be doing. Just make sure the little sump can handle the extra volume of water from the two sets of pipes for when the power shuts off (so you don't flood that nice new house of yours).

If you have to pump the water to the remote sump, then pump it back then you are looking at having to match flows and the endeavor will probably be too complicated.